13011641 has 2 divisors, whose sum is σ = 13011642. Its totient is φ = 13011640.

The previous prime is 13011631. The next prime is 13011697. The reversal of 13011641 is 14611031.

13011641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12924025 + 87616 = 3595^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 13011641 - 2⁶ = 13011577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13011631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505820 + 6505821.

It is an arithmetic number, because the mean of its divisors is an integer number (6505821).

Almost surely, 2^13011641 is an apocalyptic number.

It is an amenable number.

13011641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13011641 is an equidigital number, since it uses as much as digits as its factorization.

13011641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 13011641 is about 3607.1652304822. The cubic root of 13011641 is about 235.2036321593.

Adding to 13011641 its reverse (14611031), we get a palindrome (27622672).

The spelling of 13011641 in words is "thirteen million, eleven thousand, six hundred forty-one".